package jdbc;

import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Scanner;


/**
 * 完成用户登录功能
 * 要求用户输入用户名和密码
 * 如果与user表中该用户信息输入一致则提示登录成功，否则提示登录失败。
 */
public class loginDemo {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.println("欢迎登录:");
        System.out.println("请输入用户名:");
        String name = scanner.nextLine();
        System.out.println("请输入密码:");
        String password = scanner.nextLine();

        try (Connection connection = DBUtil.getConnection() ;) {
            Statement statement = connection.createStatement();
            String sql = "SELECT id,name,password,nickname,age " +
                    "FROM user " +
                    "WHERE name='" + name + "' AND password='" + password + "'";
            ResultSet rs = statement.executeQuery(sql);
            if (rs.next()) {
                System.out.println("登录成功");
            } else {
                System.out.println("登录失败");
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}

